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Asked: 2026-05-22T12:45:34+00:00

I have a grid view utilizing sql data source. Now I want to delete

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I have a grid view utilizing sql data source. Now I want to delete a record using grid view’s delete command, the problem is that a single record is based on information collected from multiple tables, so I have to delete parts of information from all those tables to completely remove the record, here is my table structure.

  1. Projects
  2. ProjectArticles
  3. ArticleStatus
  4. ProjectAssignments

Projects is a table with complete information about projects like, project title, client name etc, it has primary key “project_id”

ProjectArticles is a table that has information about how many articles are associated with one project for example if a project has 3 articles then this table has 3 rows with the following data

article_id  project_id

1 --------- 1 
2 --------- 1 
3 --------- 1

where “article_id” is the primary key.

Article status is a table with information regarding one article such as

status_id- article_id- filename ---- writer_status- editor_status- sales_status

1 -------- 1 --------- Any filename -- done --------- pending ------ pending

“status_id” is primary key

And finally ProjectAssignments is a table with data about which project is assigned to which writer it has assignment_id as primary key and using project_id as foreign key similar as shown above.

Any ideas how can I delete a complete project with all the relevant information in other tables ?

I have made this example query but it is not working, sql management studio saying “unable to parse query text”.

DELETE P, A FROM Projects AS P, ProjectArticles AS A WHERE P.project_id = A.project_id AND P.project_id = @project_id

In the query text above I just used two tables to check if its working or not but its not working, any help will be appreciated.

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1 Answer

  1. Editorial Team

    Cascade is useful when you want to Delete all the row related to that Perticular primary key which is used in as foreign key
    in Referenctial table.

    Eg :- Primary or Parant Table
    Tab1(Id int (primary key) ,Name varchar(10))
    Child Table
    Tab2(Class int, Id int (refrenctial key of Tab1(Id),address varchar(10))

    now when You want to delete 1 number id from your record then “ON DELETE CASCADE” is best but when you only want to delete one
    Record in Child Table then the Transaction is good.

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